Compensator



No Model.)

W. K. BEARD & H. A. AUKAMP; Jr. GOMPENSATOR.

N0.377,476. Patented Feb.'7, 1888.

gig/Mm ATTORNEY.

N, PETERS. PholoLithoglppMr. Wahingion. D-C.

' To aZZ whom it may concern:

UNITED STATES PATENT i OFFICE.

WILLIAM K. BEARD AND HENRY A. AUKAMP, JR., or LANoAsrER,

' PENNSYLVANIA.

COMPENSATOR.

SPECIFICATION forming part of Letters Patent No. 377,476, dated February 7, 1888. 7 Application filed September 10, 1887. Serial No. 249,325. (No model.)

Be it known that we, WILLIAM K. BEARD and HENRY A. AUKAMI}, J r., of Lancaster, in the county of Lancaster and State of Pennsylvanla, have invented. certain new and useful Improvements in Wire-Gompensators; and we do hereby declare the following to be a full,

I clear, and exact description of the invention,

such as will enableothers skilled in the art to which it appertains to make and use the same. I

Our invention relates to an improvement In compensators used to counterbalance the nals.

Heretofore in the so-called wire-compensators the mechanismhas been complicated, and in most cases the compensators have required daily watching and regulating.

The object of our invention is to provide a 7 expansion and contraction of wire used in sigwire-compensator which shall be simple in construction and at thesame time-automatic, requiring no attention after oncelaid down, except in case of breakage.

' Our invention consists, first, of an iron rod,

stem of saidloop passes; a, the lug on the in- 75' one end of which is made into a loop, the other having a thread cut on it, on, which screws a nut.

,tachedto another plate at the other end of the spring by means of an iron rod. This rod passes through a hole in the first plate and is there secured by a nut. It then passes up alongside of the spring through the second plate, and here forms a loop, after which it passes through another hole in the second plate, and is secured, like the other end, with a nut to the first plate, thus binding the two plates firmly together.

Our invention further consists in an iron barrel which covers the spring, being held in position by the two plates and the lugs on them,

This rod passes through a hole In a small iron plate, which fits up close and serves to protect the steel spring from the weather. A I

Tooperateour compensator, the signal-wire is attached to the loops at either end of the compensator and the spring regulated according to the lengthand position of the signal wire. As the wire contracts from the cold, it pulls on the rod of the compensator and the spring is shortened, while when the \wire expands the spring stretches out and. thus compensates for any increase or decrease in the length of the wire. 'Our invention will be better understood by reference to the drawings which accompany this specification, in which similar letters refer to similar parts. I A

Figure 1 represents the compensator as it is ready for use. Fig. '2 shows the spring and v plate withdrawn from the shelter-barrel. Fig. 3 shows in detail elevation the shelter-barrel, the rods, one of 'the plates, and the loop attached thereto. A a represents the loop to which one end of, the wire is attached. e

6 represents the plate through which the ner side of said plate,agai'nstwhich the spring.

rests; d, the iron rodxbefore referred to, with Stay-rods k extend from the inner face of plate h to and through plate b. Outside of this latter their screw-threaded ends receive nuts m, which hold the device together. The signalwire is attached to loop 6. Y

Having thus described our invention and its mode of operation, we claim as new and desire to secure by Letters Patent- A plate having a loop formed on one side of it for the attachment of a -signal-wire, in combination with rods extending from the, outer side of -said plate,another plate fastenedt on the other ends of saidrods to complete the frame, a barrel arranged longitudinally bescribed our names in the presence of two subtween these plates, an endwise-movable rod scribing witnesses. arranged within said barrel passin through the second head and provided with a wireat- VILLIAM BEARD tractingspring for said rod, also within said barrel, substantially as set forth.

In testimony whereof We have hereunto sub- XVitnesses:

A. T. HARTMAN,

5 taching loop outside of the same, and a re I HENRY AUKAMP I DAV-ID L. DEEN. 

